Invoice Requirements

To facilitate efficient processing, each invoice presented by a vendor needs to be free from mathematical and quantity errors and contain the following elements:

• Name of the vendor and "Remit to" address
• Vendor invoice number and date
• Vendor contract contact name and phone number
• County contact name
• Name of County department
• Valid Purchase Order number
• Written description of goods/services delivered
• Delivery date or service date
• Substituted items must have documented approval
• Quantity and unit price of item
• Extension on each line item
• Total Amount Due
• Payment Due Date
• Payment Terms and Discount
• Shipping payment terms
• Supporting documentation: Detailed itemized receipts must be provided for all vendor expenses or reimbursement requests.

Additional Requirements for Professional and Personal Services Invoices

• Description of services performed
• Date services were performed
• Total amount due
• Other information as required by contract or federal/state grantor agency

 
These lists are not all-inclusive and contractual provisions or other requirements may need to be provided.

All hard copy invoices should be mailed directly to:  

How to register for direct deposit payment or change banking information

• Request an ACH Vendor Payment Authorization Agreement from Accounts Payable for completion and return to our office.
• Ensure the form is signed by an authorized company officer.
• Attach a voided check or bank verification letter.
• Mail it to Harris County Auditor's Office, 1001 Preston, 8th Fl., Houston, TX  77002.